Hierarchical ZnO nanoflowers and urchin-like shapes synthesized via sol-gel electrophoretic deposition with enhanced photocatalytic performance

Taheri, Mahtab; Abdizadeh, Hossein; Golobostanfard, Mohammad Reza

doi:10.1016/j.matchemphys.2018.08.043

Cited by 23 publications

(7 citation statements)

References 37 publications

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“…Basically, attribution of photocatalytic study was made to confirmed results of the enhanced establishment of p-n heterjunction and nanorod morphology for charge separation. Studies of shown the durability and sustainability of the catalyst, and we believe that our conclusions offer not only a favourable strategy for the development of photocatalysts with the desired morphology of nanorods, then also new possibilities low-cost preparation of different materials with higher photoresponse and sustainability of the desired morphology [21].…”

Section: Morphology Dependent Photocatalytic Activity Of Znomentioning

confidence: 57%

Morphology dependent photocatalytic activity of ZnO nanostructures-A short review

Gowtham¹,

Sivakumar²,

Mohanraj³

et al. 2020

NanoNEXT

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Zinc oxide (ZnO) is a material that is flexible with distinctive characteristics, such as high sensitivity, wide-ranging, non-toxicity, strong compatibility and strong isoelectricity point that support the consideration with a few exceptions. The advantages for energy and biological science applications depend on nanostructured morphology ZnO based material are regularly studied. These review works concentrate on the recent development in ZnO morphological depends nanomaterial, nanocomposites, and doped materials for the photocatalyst activities.

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Section: Morphology Dependent Photocatalytic Activity Of Znomentioning

confidence: 57%

Morphology dependent photocatalytic activity of ZnO nanostructures-A short review

Gowtham¹,

Sivakumar²,

Mohanraj³

et al. 2020

NanoNEXT

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“…Besides, the •O 2 − is presumably reacted with a proton or H 2 O to produce hydroperoxide radical (HO 2 •) and hydroxyl radical (OH•) simultaneously. These generate strong oxidants such as •O 2 − , OH• and HO 2 • and effectively photodegrade the MB foulants into innocuous components such as CO 2 and H 2 O 19,52 . The MB photodegradation pathway is as followed:

ZnO / CNT + hv \to ZnO / CNTs ((), e^{-} + h^{+}) .

ZnO / CNTs ((), e^{-} + h^{+}) \to ZnO ((), {normalh}^{+}) / CNTs ((), {normale}^{-}) .

O_{2} + e^{-} \to • {normalO}_{2}^{-} .

• {normalO}_{2}^{-} + {2H}^{+} \to H_{2} O_{2} .

H_{2} O_{2} + • {normalO}_{2}^{-} \to OH • + {OH}^{-} + O_{2} .

H^{+} + H_{2} normalO \to OH • + H^{+} .

MB + OH • \to {CO}_{2} + H_{2} normalO .

…”

Section: Resultsmentioning

confidence: 99%

“…With the formation of heterojunction Zn-O-C in ZnO/CNTs photocatalyst, the photoexcited e À is instantly migrated to the surface of CNTs due to their superb electron conductivity and thus the recombination between e À and h + is retarded. The adsorbed oxygen molecules on the surface of CNTs scavenge e À to produce superoxide anion radical (•O 2 À ) while the h + remained at ZnO 19,52 The MB photodegradation pathway is as followed:…”

Section: Proposed Formation Of Zno/cnts Photocatalystmentioning

confidence: 99%

Fabrication of asymmetric zinc oxide/carbon nanotubes coated polysulfone photocatalytic nanocomposite membrane for fouling mitigation

Phin

Sin

Tan

et al. 2021

J of Applied Polymer Sci

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“…Various preparation routes have been proposed for ZnO nanoparticles like sol‐gel,, co‐precipitation,, micro‐emulsion, and green synthesis methods ,. In the present work hydrothermal method is used for synthesis of ZnO nanotubes and flowers as this process provides highly pure and crystalline products with desired morphologies and dimensions.…”

Section: Introductionmentioning

confidence: 99%

Layer by Layer Assembly of Zinc Oxide Nanotubes and Nanoflowers as Catalyst for Separate and Simultaneous Catalytic Degradation of Dyes and Fuel Additive

et al. 2019

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Zinc oxide nanotubes and nanoflowers are synthesized using urea as template through hydrothermal technique. XRD confirmed that product is consists of zinc and oxygen atoms forming a hexagonal crystal system with ZnO chemical formula. SEM showed that tubes and flower like particles are formed. ATR‐IR confirmed the presence of Zn−O bond as a functional group. UV‐VIS spectroscopic analysis exhibits that product has a band gap energy of 3.49 eV. Synthesized product due to its outstanding properties such as wide band gap semiconductor and large surface area to volume ratio is used as a catalyst for individual and simultaneous catalytic degradation of methylene blue (MB) and Congo red (CR) dyes. The apparent rate constant (kapp) value of individual and simultaneous catalytic degradation of CR dye is decreased with increase in catalyst dosage while kapp value of individual and simultaneous catalytic degradation of MB dye is increased with increase in catalyst dosage. The synthesized product is found more active towards CR dye as compared to MB dye. Small size and high surface area to volume ratio of product also make it a desirable additive for enhancing the efficiency of diesel fuel. Results obtained from fuel additive activity show that as the concentration of nanoadditive is increased from 20, 40, 60, 80 and 100 ppm the calorific value is increased which indicates the enhanced efficiency of fuel due to additive.

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Hierarchical ZnO nanoflowers and urchin-like shapes synthesized via sol-gel electrophoretic deposition with enhanced photocatalytic performance

Cited by 23 publications

References 37 publications

Morphology dependent photocatalytic activity of ZnO nanostructures-A short review

Morphology dependent photocatalytic activity of ZnO nanostructures-A short review

Fabrication of asymmetric zinc oxide/carbon nanotubes coated polysulfone photocatalytic nanocomposite membrane for fouling mitigation

Layer by Layer Assembly of Zinc Oxide Nanotubes and Nanoflowers as Catalyst for Separate and Simultaneous Catalytic Degradation of Dyes and Fuel Additive

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